Home / 9,145.13-13,712.79-2,903.45

Finding the Fourth Proportional to 9,145.13, 13,712.79 and 2,903.45

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Solution

The fourth proportional to 9,145.13, 13,712.79 and 2,903.45 is: 4,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.13 : 13,712.79 = 2,903.45 : x
  2. Step 2: Convert to fraction form
    9,145.13/13,712.79 = 2,903.45/x
  3. Step 3: Cross multiply
    9,145.13x = 13,712.79 × 2,903.45
  4. Step 4: Simplify right side
    9,145.13x = 39,814,400.13
  5. Step 5: Solve for x
    x = 39,814,400.13/9,145.13
  6. Step 6: Final answer
    x = 4,353.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.